Joint replacement, knee
Also Known As: Joint replacement, knee, Knee Replacement Surgery, Knee, Total Knee Replacement
Replacement arthroplasty [from Greek arthron, joint, limb, articulate, + -plassein, to form, mould, forge, feign, make an image of], or joint replacement surgery, is a procedure of orthopedic surgery in which the arthritic or dysfunctional joint surface is replaced with an orthopaedic prosthesis. Joint replacement is considered as a treatment when severe joint pain or dysfunction is not alleviated by less-invasive therapies.
Joint replacement surgery is becoming more common, with knees and hips replaced most often. As of 2009, about 773,000 Americans have a hip or knee replaced each year".